Controlling Invalid Comparisons

You can receive invalid comparisons for sales information when:

• The sales information does not extend through the entire analysis period.

  At the tenant level, for example, YTD sales cannot be compared to the same period from the prior year if the tenant launched the business after the prior year began or if no sales were reported for any months involved.

• The rented area related to the sales information changed during the analysis period.

  Depending on the report, the system might handle such a change differently.

However, the lack of reported sales or the change in rented area at one level does not necessarily cause a higher level of comparison to be invalid. For example, a comparison of the sales performance between two shopping malls might not be invalid because of the lack of sales for a given tenant. But this comparison could be invalid when the overall performance of the malls is being analyzed without regard to attrition and vacant space.